In this lesson students will continue to explore the technique of embedding a Switch block inside of a controlled loop in order to accomplish continuous obstacle detection. They will also tackle the EV3 Trainer's culminating challenge: Search and Rescue
In this Lesson we have 2 Primary Instruction Resources:
- The EV3 Trainer lesson on SwitchLoops
- The EV3 Trainer Final Challenge: Search and Rescue
Resource 1:
The EV3 Trainer has a lesson describing SwitchLoops
Behaviors > Decisions > 9. Switch-Loops
The EV3 Trainer Teacher's Guide [1] references this on pages 77-82.
Students should be able to answer all the review questions at the end of each step and end up with a solid command of the SwitchLoop concept and how this technique enables near simultaneous checking of two sensors, allowing for behaviors such as Obstacle Detection over a known distance.
The EV3 Trainer Teacher’s Guide has additional reproducibles for those who have purchased the product. The reproducibles for Switch-Loops can be found on pages 109-112.
As students progress through, have them document their milestones in the SwitchLoops Task Assignment Sheet [2]. [3]
The challenge for this lesson is the Obstacle Orchard Challenge [4]. During sign off, check that student grasp this key concept:
-
The SwitchLoop allows near simultaneous checking of two sensors by:
- Allowing only "fast" blocks inside the switch (no Move_Rotations, or time delays)
- Controlling the Loop with a second sensor
Resource 2:
The EV3 Trainer Final Challenge: Search and Rescue
Final Challenge > Search and Rescue Challenge
Have students sign off this culminating challenge [5] in the SwitchLoops Task Assignment Sheet [2]. [3]
